ofdm系统中的信道编码和调制方式，是比较全面的模仿了无线信道的一些干扰特性-OFDM system channel coding and modulation method is more comprehensive to imitate some of the wireless channel interference characteristics of
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001220s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.084804s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001149s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001883s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001159s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003597s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000939s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003154s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014759s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001212s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 308239 [ RunTime:0.001194s ]
